Advertisements
Advertisements
Question
Why photosynthesis is a chemical reaction?
Advertisements
Solution
-
Photosynthesis is a process in which light energy from the sun is used by the plants to prepare starch from carbon dioxide and water.
-
The sunlight uses the chemical reaction between carbon dioxide and water, which finally ends up in the production of starch (photo means light and synthesis means production). These chemical reactions used by light are called photochemical reactions.
APPEARS IN
RELATED QUESTIONS
Spoiling of food is a ______ change.
On immersing an iron nail in CuSO4 solution for a few minutes, you will observe ______.
The head of a matchstick contains red phosphorous.
Ammonia is an important fertilizer in agriculture.
Match the following
| i. | Quick lime | a. | Calcium hydroxide |
| ii. | Slaked lime | b. | Calcium oxide |
| iii. | Thermolysis | c. | Light |
| iv. | Photochemical | d. | Heat |
Match the following
| i. | Ammonia | a. | Nickel |
| ii. | Dalda | b. | Fermentation |
| iii. | Alcoholic beverages | c. | Biocatalysts |
| iv. | Yeast | d. | Urea |
What are the conditions required for a chemical reaction to take place?
Write a note on catalytic reactions.
Reason out
The speed of a certain reaction is influenced by the catalyst.
Reason out
Chlorine is produced by Brine.
